CN105799899B - A kind of transmission joint of the anti-oar propeller of tubular type - Google Patents
A kind of transmission joint of the anti-oar propeller of tubular type Download PDFInfo
- Publication number
- CN105799899B CN105799899B CN201610143923.1A CN201610143923A CN105799899B CN 105799899 B CN105799899 B CN 105799899B CN 201610143923 A CN201610143923 A CN 201610143923A CN 105799899 B CN105799899 B CN 105799899B
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- China
- Prior art keywords
- propeller
- female connector
- activity
- oar
- tubular type
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/084—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with two or more pump stages
- B63H2011/085—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with two or more pump stages having counter-rotating impellers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The invention discloses a kind of transmission joint of the anti-oar propeller of tubular type, including hull, waterway and the anti-oar propeller of tubular type, the left and right sides of hull is each provided with waterway, the anti-oar propeller of tubular type is provided with waterway, butt hole is provided with the hull of side chute, activity is provided with butt hole to female connector, activity is to being provided with multiple sealing ring A between female connector and butt hole, activity is to being provided with fixing bolt A in female connector, activity is provided with fixing bolt B to the outer ring of female connector, activity in female connector to being provided with connecting hole, bushing is provided with connecting hole, activity is provided with sealing external cover to the outer end of female connector, activity is additionally provided with temporary sealing lid B to the outer end of female connector；The present invention can mount and dismount the anti-oar propeller of tubular type under water quick, simple and safely, effectively lower the loss of engine power transmission, and limitation blade point streams loss, reduce wake flow spin loss after propeller, absorption relatively high power, vibration damping and avoid vacuole.
Description
Technical field
The present invention relates to a kind of marine propeller, more particularly, to the engine in a kind of anti-oar propeller of tubular type and hull
Between transmission joint.
Background technology
In, Options of Ship Navigation be most afraid of at sea be ship shafting break down and repair, because engine therefore
Barrier can be repaired in hull, but in, the shafting failure of large ship must repair into dry dock；The propeller of traditional ship is set
Put in the rear end of ship, although the position of ship rear end is big, the bigger propeller of settable diameter, but the current that propeller is promoted
Stopped by above hull and receive certain influence, and its shafting is longer, and the torsion of such shafting can increase, shaft is set
Meter and manufacture require also improve, and the rotating speed of its propeller can not be too fast, easily produces vacuole, in shafting and the peace of propeller
Dress, dismounting execution are also very inconvenient when safeguarding；
Application No. CN201310338486.5 Chinese patent discloses setting for a kind of marine propeller and the propeller
Put method and method for dismounting；The marine propeller of embodiments of the invention includes：Rear screw shaft, is fixed on the rotary shaft；Preceding spiral shell
Oar is revolved, is pivotably supported by the rotary shaft in front of rear screw shaft；Rotating device is reversed, inverts the rotation of rotary shaft, and pass
Front propeller is handed to, and in the installation space of hull afterbody；Propeller connector, connection reverses rotating device and preceding spiral shell
Oar is revolved, and transmits revolving force；Thrust support device, is arranged between reverse rotating device and propeller connector, spiral shell before support
Revolve the thrust of oar；His inside and outside coaxial design for being designed as traditional hull rear, and complicated, be difficult to install under water,
Disassembling section；
Application No. CN87103246 Chinese patent discloses a kind of propeller device for vessel；Propeller system 10 has two
It is individual to be arranged in the propeller 13,14 for making mutual opposite direction rotation on common axis of rotation.Power passes through a vertical axis 12 and one
Individual angle 11, is delivered to the propeller shaft of basic horizontal.Propeller system 10 is at least provided with a toroidal helical oar
Conduit 15, at least one propeller 13 or 14 of propeller system 10 is arranged in the propeller nozzle and rotated.In the present invention
A Favourable implementations in, the first propeller 13, i.e. front propeller be arranged in propeller nozzle 15B rotate, the second spiral shell
Rotation oar 14 is naked propeller；This coaxial anti-oar propulsive unit is traditional rear-mounted extension oar machine, may be only available for small boat
Only, it is impossible to be used in, on large ship.
I am by long-term thinking and looks through a great amount of information and retrieves, and existing at present each is solved finally and is asked
Topic, the present invention under water can be quick, simple and safe when shafting and propeller break down dismantled, be hung on ship and repair
Or quickly installed under water after changing and continue navigation；Effectively lower the loss of the power transmission of engine, improve spiral
The propulsive efficiency of oar, limit blade point streams loss, reduces wake flow spin loss after propeller, reduces energy loss, inhales
Relatively high power is received, vibration damping and vacuole is avoided.
The content of the invention
The technical problems to be solved by the invention are to provide between the engine in a kind of anti-oar propeller of tubular type and hull
Transmission joint.
A kind of transmission joint of the anti-oar propeller of tubular type, including hull, waterway and the anti-oar propeller of tubular type, it is special
Levy and be that the left and right sides of the hull is each provided with waterway, the both sides of the waterway are respectively arranged with chute, described
It is provided with chute on the described anti-oar propeller of tubular type, the hull of the side chute and is provided with butt hole, it is described
Activity is provided with butt hole to female connector, described is movable to being provided with multiple sealing ring A between female connector and described butt hole,
The activity is provided with multiple sealing ring B to the front end of female connector, and described activity is described to being provided with fixing bolt A in female connector
Activity is provided with fixing bolt B to the outer ring of female connector, is connected between described fixing bolt B and described hull, described work
It is dynamic to be provided with bushing to being provided with female connector in connecting hole, described connecting hole, axis hole, the lining are provided with described bushing
The outer end of set, which is provided with bearing groove B, described bearing groove B, is provided with radial thrust bearing, outer end of the activity to female connector
It is provided with sealing external cover, described sealing external cover and is provided with transmission axis hole, is provided with sealing ring in described transmission axis hole, institute
State activity the outer end of female connector is additionally provided with temporary sealing lid B, temporary sealing lid B surrounding with described fixing bolt
A and described fixing bolt B the position place of overlapping are provided with multiple screw notches.
The anti-oar propeller of described tubular type includes draw runner, connecting cross beam and transmission bloster, it is characterised in that the tubular type is anti-
The left and right sides of oar propeller is each provided with described draw runner, described activity between female connector and described draw runner by described
Described connecting cross beam, the middle-end of draw runner described in both sides are respectively connected between fixing bolt A connections, the two ends of draw runner described in both sides
Between be provided with described transmission bloster, described transmission bloster and the draw runner of side and be provided with spindle hole, the master
The position of the position of axis hole and the connecting hole is the same center of circle, is movably set with described spindle hole and described connecting hole
Transmission main shaft, the outer end of the transmission main shaft is provided with bearing inside groove, the position of the bearing inside groove and the position of the bearing groove B
Put consistent, the inner of the transmission main shaft is also equipped with radial thrust bearing, and described spindle hole the inner is provided with bearing groove
A, the radial thrust bearing described in the inner matches with described bearing groove A, and the inner of the transmission main shaft is provided with 45 degree of cones
Oar axle is each provided between shape travelling gear, the connecting cross beam described in described transmission bloster and two ends, oar axle described in two ends
The inner is each provided with 45 degree of described taper travelling gears, and 45 degree of taper travelling gear kissings described in three merge connection, two
Each on the described oar axle in end to set propeller, the propeller described in two is on the contrary, the outer end of the spindle hole is provided with temporarily
Seal groove, the diameter of the temporary sealing groove, which is less than or equal in the diameter of the connecting hole, described temporary sealing groove, to be set
Have to be provided with temporary sealing lid A, described temporary sealing lid A and facilitate screw, described facilitates screw to be half bore, described side
Just it is movably set with convenient pole on screw.
Engine is each provided with the left and right sides and the symmetrical position of the anti-oar propeller of the tubular type in the hull,
Universal joint is provided between described engine and described transmission main shaft outer end, one end of draw runner is each provided with many described in both sides
Individual positioning hole.
The anti-oar propeller of tubular type can improve the propulsive efficiency of propeller, because flow velocity height, pressure are low inside waterway,
Pressure differential inside and outside conduit forms additional thrust on waterway wall, the gap very little between waterway and propeller blade, limitation
Blade point streams loss, and waterway can reduce wake flow spin loss after propeller, reduce energy loss, absorption is larger
Power, effective vibration damping and avoids vacuole.
The design of anti-oar before and after the anti-oar propeller of tubular type；First oar provides " precommpression " of current, second for the second oar
Level oar just has the jet density of bigger drainage amount, and its effect can reach 1 to 2 times of single-blade.
The anti-oar propeller of tubular type and chute-type design；Be conducive to the anti-oar propeller integral demounting of tubular type or peace in water
Dress, is easy to repair, safeguards.
The design of the anti-oar propulsive unit of tubular type of the left and right sides can make ship have bigger thrust and flexibility, shorten shafting
Length, reduce shafting torsion, reduce engine power conveying loss.
The front and rear oar axle and the main shaft design of intermediate transmission of the anti-oar propulsive unit of tubular type, than traditional inside and outside coaxial design letter
Single, much effective, traditional coaxial anti-oar is inside and outside coaxial design, so its interior axle can not be excessively thick；Traditional coaxial anti-oar and
The oar axle of ship is all that engine and propeller be arranged on into oar axle two ends, the length of oar axle it is longer its torsion it is also bigger,
This proposes higher requirement to oar shaft design and production, and the power transmission of the anti-oar propulsive unit of tubular type is intermediate input two ends
Output, it is simple, practical.
The movement of ship is to enter to produce in a row to the one of water by propeller, and traditional propeller is arranged on after hull
Side, such hull can form certain stop to current, have impact on the flow direction of current；And the present invention sets the anti-oar propeller of tubular type
Meter is the problem of solve above well in the hull left and right sides, using the anti-oar propeller of tubular type be directly sucked in the current in front by its
Spray, the anti-oar propeller of tubular type is greatly improved the utilization rate of engine power, its speed faster, thrust it is bigger.
Setting of the activity to female connector solves installation and dismounting of the transmission main shaft in hull well, pushes away the anti-oar of tubular type
Enter modular appliance of the device as an entirety.
The temporary sealing lid A and temporary sealing lid B dismounting for being arranged on the anti-oar propeller of tubular type, can temporary enclosed when installing
Spindle hole and connecting hole, facilitating the setting of screw can make temporary sealing lid A more convenient, accurate in dismounting, installation；Sealing ring B
Setting activity can be made to be fixed down with fixing bolt A when docking female connector with the spindle hole on draw runner more seal, bushing is set
The bearing groove B of radial thrust bearing can conveniently be set by putting, can accurate fixed conveyor main shaft position, temporary sealing lid B surrounding
The setting of flight can make temporary sealing lid B when being fixed on activity to female connector outer end also to fixing bolt A and fixing bolt B
Operated, setting of the diameter less than or equal to connection bore dia of temporary sealing groove can facilitate temporary sealing lid A in dismounting, peace
During dress into and out of.
Brief description of the drawings
Fig. 1 is stereochemical structure sectional view of the invention；
Fig. 2 is three-dimensional side view of the invention；
Fig. 3 is partial cross structure chart of the invention；
Installations and chute sectional view of the Fig. 4 for the anti-oar propeller of tubular type of the present invention；
Fig. 5 is the anti-oar propeller sectional view of tubular type of the invention；
Fig. 6 is phantom of the invention；
Fig. 7 is partial cross exploded view of the invention；
Sectional view when Fig. 8 seals for the activity of the present invention to female connector；
Fig. 9 docks nested structure stereogram for the activity of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1,2,3,4,7,8,9；A kind of transmission joint of the anti-oar propeller of tubular type, including hull 1, water flowing
Road 5 and the anti-oar propeller 2 of tubular type, the left and right sides of hull 1 are each provided with waterway 5, and the both sides of waterway 5 are respectively arranged with cunning
It is provided with the anti-oar propeller 2 of tubular type, the hull 1 of side chute 6 and is provided with butt hole 20, butt hole 20 on groove 6, chute 6
Activity is provided with to female connector 21, activity is to being provided with multiple sealing ring A35 between female connector 21 and butt hole 20, activity is to female connector 21
Front end be provided with multiple sealing ring B36, activity is to being provided with fixing bolt A38, outer ring of the activity to female connector 21 in female connector 21
Fixing bolt B39 is provided with, is connected between fixing bolt B39 and hull 1, activity is to being provided with connecting hole 22 in female connector 21, even
Connect and bushing 24 is provided with hole 22, axis hole is provided with bushing 24, the outer end of bushing 24 is provided with bearing groove B29, bearing groove B29
In be provided with radial thrust bearing 18, activity is provided with sealing external cover 26, sealing external cover 26 to the outer end of female connector 21 and is provided with
Sealing ring is provided with transmission axis hole, transmission axis hole, activity is additionally provided with temporary sealing lid B32 to the outer end of female connector 21, temporarily
Closure B32 surrounding is provided with multiple screw notches at the position place of overlapping with fixing bolt A38 and fixing bolt B39.
As shown in Fig. 3,4,5,6,7；The anti-oar propeller 2 of tubular type includes draw runner 11, connecting cross beam 12 and transmission bloster 13, pipe
The left and right sides of the anti-oar propeller 2 of formula is each provided with draw runner 11, and activity between female connector 21 and draw runner 11 by fixing bolt A38 to being connected
Connect, be respectively connected between the two ends of two sideslip bars 11 between connecting cross beam 12, the middle-end of two sideslip bars 11 and be provided with transmission bloster
13, transmission bloster 13 and side draw runner 11 in be provided with spindle hole 23, the position and the position of connecting hole 22 of spindle hole 23 are
Transmission main shaft 27 is movably set with the same center of circle, spindle hole 23 and connecting hole 22, the outer end of transmission main shaft 27 is provided with bearing
Inside groove 30, the position of bearing inside groove 30 is consistent with bearing groove B29 position, and the inner of transmission main shaft 27 is also equipped with centripetal push away
Power bearing 18, the inner of spindle hole 23 is provided with bearing groove A25, and inner radial thrust bearing 18 matches with bearing groove A25, passes
The inner of dynamic main shaft 27 is provided with 45 degree of taper travelling gears 28, is each provided between transmission bloster 13 and two ends connecting cross beam 12
Oar axle 14, the inner of two ends oar axle 14 is each provided with 45 degree of taper travelling gears 28, three 45 degree of kissings of taper travelling gear 28
Merge each setting propeller 15 on connection, the oar axle 14 at two ends, the propeller 15 of two is on the contrary, the outer end of spindle hole 23 is set
There is temporary sealing groove 16, the diameter of temporary sealing groove 16, which is less than or equal in the diameter of connecting hole 23, temporary sealing groove 16, to be set
Have to be provided with temporary sealing lid A31, temporary sealing lid A31 and facilitate screw 41, it is half bore to facilitate screw 41, is facilitated on screw 41
It is movably set with convenient pole.
As shown in Fig. 1,3,4；The left and right sides in hull 1 is respectively set on the position symmetrical with the anti-oar propeller 2 of tubular type
There is engine 3, universal joint 4 is provided between engine 3 and the outer end of transmission main shaft 27, one end of two sideslip bars 11 is each provided with
Multiple positioning 17.
Transmission main shaft 27 in the anti-oar propeller 2 of tubular type is exited from spindle hole 23, then pacified in temporary sealing groove 16
Load onto temporary sealing lid A31, the anti-oar propeller 2 of tubular type just turns into single entirety, by two draw runners 11 can waterway 5 cunning
Passed in and out in groove 6；
Activity to being linked together between female connector 21 and hull 1 with fixing bolt B39, by activity to the front end of female connector 21 with
The regulation of chute 6 is to there is certain space（Passed in and out and be defined in chute 6 by the draw runner 11 for not influenceing the anti-oar propeller 2 of tubular type）, this
When activity temporary sealing lid B32 is provided with to the one end of female connector 21 in hull 1（Prevent the entrance of water）, promoted in the anti-oar of tubular type
After the smooth groove 6 of device 2 enters（Chute 6 has the end, can position the anti-oar propeller 2 of tubular type in the position of waterway 5, interim close to ensure
The position of sealing groove 16 and the position consistency of butt hole 20）, activity is fixed to female connector 21 with draw runner 6 with fixing bolt A38, now
Sealing ring B36 serves sealing function, then fixes after fixing bolt B39 and to dismantle temporary sealing lid B32, then dismantles the inside and face
When closure A31 and be drawn off, convenient pole and facilitate hole 41 to be risen when temporary sealing lid A31 is dismantled and taken out or enter and install
To effect, by transmission main shaft 27（Now radial thrust bearing 18 and 45 degree of taper transmissions have been installed in the front end of transmission main shaft 27
Gear 28）Be advanced to spindle hole 23 and be connected with inner two 45 degree kissings of taper travelling gear 28 merging, after in connecting hole
Installed on 22 installed in upper bushing 24, and bearing inside groove 30 on the bearing groove B29 of bushing 24 and on transmission main shaft 27 to
Heart thrust bearing 18（For same radial thrust bearing 18）, fill it up with and install sealing external cover 26 after gear oil again, by universal joint 4
Transmission main shaft 27 is connected with engine 3, finally fixing bolt is installed in multiple positioning holes 17 of the rear end of two sideslip bar 11
The anti-oar propeller 2 of tubular type is integrally fixed with hull and completed, its process is then on the contrary during repair demolition.
Claims (3)
1. a kind of transmission joint of the anti-oar propeller of tubular type, including hull, waterway and the anti-oar propeller of tubular type, its feature
It is that the left and right sides of the hull is each provided with waterway, the both sides of the waterway are respectively arranged with chute, described cunning
The described anti-oar propeller of tubular type is provided with groove, wherein butt hole is provided with the hull of the chute of side, institute
Activity is provided with the butt hole stated to female connector, described activity is to being provided with multiple sealings between female connector and described butt hole
A is enclosed, the activity is provided with multiple sealing ring B to the inner of female connector, and described is movable to being provided with fixing bolt A in female connector,
The activity is provided with fixing bolt B to the outer ring of female connector, is connected between described fixing bolt B and described hull, described
Activity be provided with bushing to being provided with female connector in connecting hole, described connecting hole, be provided with axis hole in described bushing, institute
The outer end for stating bushing is provided with bearing groove B, described bearing groove B and is provided with radial thrust bearing, and the activity is to female connector
Outer end, which is provided with sealing external cover, described sealing external cover, is provided with transmission axis hole, and sealing is provided with described transmission axis hole
Circle, the activity is additionally provided with temporary sealing lid B to the outer end of female connector, and the surrounding of the temporary sealing lid B is consolidated with described
Determine bolt A and the described fixing bolt B position place of overlapping is provided with multiple screw notches.
2. a kind of transmission joint of the anti-oar propeller of tubular type according to claim 1, the anti-oar of described tubular type is promoted
Device includes draw runner, connecting cross beam and transmission bloster, it is characterised in that the left and right sides of the anti-oar propeller of tubular type is each provided with
Described draw runner, described activity between female connector and described draw runner by described fixing bolt A connections, draw runner described in both sides
Two ends between be respectively connected between described connecting cross beam, the middle-end of draw runner described in both sides and be provided with described transmission bloster,
Spindle hole, the position of the spindle hole and the position of the connecting hole are provided with described transmission bloster and the draw runner of side
Be set to the same center of circle, be movably set with transmission main shaft in described spindle hole and described connecting hole, the transmission main shaft it is outer
End be provided with bearing inside groove, the position of the bearing inside groove is consistent with the position of the bearing groove B, the transmission main shaft it is interior
End is also equipped with radial thrust bearing, and described spindle hole the inner is provided with bearing groove A, the radial thrust bearing described in the inner with
Described bearing groove A matches, and the inner of the transmission main shaft is provided with 45 degree of taper travelling gears, described transmission bloster with
Oar axle is each provided between connecting cross beam described in two ends, the inner of oar axle described in two ends is each provided with 45 degree of taper driving cogs
Wheel, 45 degree of taper travelling gear kissings described in three merge each setting propeller, two institutes on connection, the oar axle described in two ends
The propeller stated be on the contrary, the outer end of the spindle hole is provided with temporary sealing groove, the diameter of the temporary sealing groove be less than or
Equal to the diameter of the connecting hole, it is provided with described temporary sealing groove on temporary sealing lid A, described temporary sealing lid A
It is provided with and facilitates screw, described facilitates screw to be half bore, and described facilitating is movably set with convenient pole on screw.
3. a kind of transmission joint of the anti-oar propeller of tubular type according to claim 2, it is characterised in that the hull
The interior left and right sides on the symmetrical position of the anti-oar propeller of the tubular type with being each provided with engine, described engine and institute
Universal joint is provided between the transmission main shaft outer end stated, one end of draw runner is each provided with multiple positioning holes described in both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143923.1A CN105799899B (en) | 2016-03-15 | 2016-03-15 | A kind of transmission joint of the anti-oar propeller of tubular type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143923.1A CN105799899B (en) | 2016-03-15 | 2016-03-15 | A kind of transmission joint of the anti-oar propeller of tubular type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105799899A CN105799899A (en) | 2016-07-27 |
| CN105799899B true CN105799899B (en) | 2017-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610143923.1A Active CN105799899B (en) | 2016-03-15 | 2016-03-15 | A kind of transmission joint of the anti-oar propeller of tubular type |
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| CN (1) | CN105799899B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109703693B (en) * | 2019-01-30 | 2024-04-16 | 湖南科技大学 | Butt joint equipment and method for movable shaft sleeve of propeller shaft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3300380A1 (en) * | 1983-01-07 | 1984-07-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | UNDERWATER PROPELLER DRIVE |
| WO2005021374A1 (en) * | 2003-09-01 | 2005-03-10 | Nenad Fles | Contra-rotating variable pitch propellers fitted on the strut |
| DE112006002114A5 (en) * | 2005-06-09 | 2008-05-21 | Schottel Gmbh & Co. Kg | Ship propulsion and marine propulsion |
| KR101422239B1 (en) * | 2012-10-18 | 2014-07-22 | 삼성중공업 주식회사 | Propulsion apparatus for vessel |
| CN203461078U (en) * | 2013-08-27 | 2014-03-05 | 宁波市鄞州发辉机械科技有限公司 | Waterborne propelling device |
| CN204623814U (en) * | 2015-05-07 | 2015-09-09 | 赖萍生 | Ship shaft carries the multistage counter rotating propeller of conduit |
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2016
- 2016-03-15 CN CN201610143923.1A patent/CN105799899B/en active Active
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| CN105799899A (en) | 2016-07-27 |
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